Blank creasing device



Oct. 20, 1931. G. w. SWIFT, JR 1,328,234

BLANK CREASING DEVICE Filed March 18, 1930 Patented Oct. 20, 1931 were!) STATES PATENT OFFICE GEORGE VI. SVJIFT, JR., 0! BORDENTOWN, NEW JERSEY, ASSIGNOR TO GEORGE W. SWIFT, JR., INC., 01'! BORDENTOWN, NEW JERSEY, A CORPORATION O]? NEW JERSEY BLANK CREASING DEVICE Application filed March 18, 1930. Serial No. 436,767.

This invention relatesmore especially to blank-creasing devices, such, for example, as those employed for scoring blanks along predetermined lines along which said blanks are v to be folded.

' imparting one or more creases during a sin 1e operation upon any one of a number of blan s or boards which may have various characteristics in regard to thickness, stiifness, density, etc. For this purpose, one or both of the creasing members may be constructed in relatively-adjustable parts for varying the widths of the slots or grooves in the female creasing member or for adjusting the position or relative arrangement of the scoring disks of the male creasing member.

Two embodiments of my invention are shown on the drawings to illustrate the underlying principle. According to the simpler form, the female creasing member is constructed in coaxial'ly arranged sectlons which are axially adjustable to provide a groove or slot of variable width, a male creasing member which h as a peripheryofsuitable form being arranged to cooperate jointly with the sections of the female creasing member in any of their relatively adjusted positions for adapting" the creasing mechanism to-operate upon boards of various qualities or characteristics. According to the second form shown on the drawings, two scoring members are made adjustable relatively to each other, and in relation withthe adjustable parts of a double female, creasing member.

r In the drawings,

, Figure 1 is a front elevation of one embodiment of my invention, parts being broken away and parts shown in section.

Figure 2 is a side elevation of one of the relatively adjustable sections of the female blank-creasing member according to this embodiment of my invention.

Figure 3 is a side elevation similar to Figure 1 showing another embodiment of my invention, parts being broken away and parts shown in section.

According to the embodiment of my invention shown in Figures 1 and 2 of the drawings, the blank-creasing members are mounted on two parallel shafts 1 and 2, said shafts being connected by intermeshing gears (not shown) to, rotate in unison. Mountedupon the shaft 1 is a female creasing member which is provided With a slot or groove that isadjustable in width so that it may be used in conjunction with a suitably-formed male member for scoring or creasing blanks constructed of materials which vary considerably in. respect to thickness, stiffness and other characteristics. F or this purpose in the present embodiment of my invention the female member comprises a section 3 provid ed with a radial socket 4 which is threaded for the reception of a set screw 5 for releasably securing the section 3 to the shaft 1. The section 3 may be provided with an elongated hub-portion 6 upon which may be mounted an axially-adjustable disk 7 said disk 7 being preferably threaded upon the elongated hub 6 for this purpose. Suitable means for immovably securing the sections 3 and 7 togetherin any adjusted position, may be provided by means of screws 8 threaded into the disk 7 at any desired angular spacing around'the axis of shaft 1, the adjacent side wall of the disk 3 being provided with a circular series ofsockets or recesses 9 for the reception ofsaid screws. According to the embodiment of my invention shown 011 F igures 1 and'2 of the drawings, the disk 7 may be rigidly set in 16 different angular positions within the axial distance represented by the pitch of the screw thread connecting disk 7 with the threaded hub 6 ofthe section 3. It will be seen, therefore, that any desired radinc justment in the width of the slot or groove 10 which intervenes between the sections 3 and 7 may be had by the proper selection and arrangement of the set screws 8 and sockets 9. The male creasing member of this embodiment of my invention comprises a circular disk 11 provided with a hub-portion 12 which may be secured to the shaft 2 at any desired point by means of a set-screw 13. The periphery 14 of the disk 11 is usually made symmetrical with respect to a plane transverse to its axis and with op positely-presented beveled surfaces which are adapted to cooperate jointly with the sections 3 and 7 of the female member. As shown in Figure 1, the wedge-shaped periphery 14 of the disk 11 may be adapted to score the material 15 of which the blank is constructed along any predetermined line for which it may be set and by means of an angular adjustment of the disk Taround the hub 6 of disk 3, the intervening slot 10 may be adjusted in width to meet the requirements of cardboard, fiber, or other materials having various properties. By means of this construction, therefore, one and the same creasing head may be employed for a great many different kinds of materials.

According to the embodiment of my invention shown in Figure 3, a pair of shafts 16 and 17 which are arranged on opposite sides of a web 18 may be driven in unison by intermeshing gears (not shown). According to the form of this device shown in Figure 3, the female creasing member comprises a centrally-disposed disk 19 which is adjustably secured to the shaft 16 by means of a grub or set-screw 20. Preferably, said disk 19 is provided with oppositely-presented hub extensions 21 and 22 which. may be provided with exterior screw threads 2 f upon which rings .25 and 26 may be threaded to adapt them to be moved axially with respect to the center disk 19 for the purpose of providing slots or grooves 27 of variable width. Suitable means for retaining these rings 25 and 26 in adjusted position may be provided by screws 28 which are threaded into the rings 25 and 26 and are seated within suitable recesses similar to those shown at 9 in Figure 2 for holding the rings against relative angular movement. A male creasing or scoring member 29 which is provided with a hub extension 30 provided with exterior screw threads 31 may be adjustably secured to the shaft 17 by means of a grub or set screw 32. Threaded to the hub 30 of this scoring disk is a ring 33 which carries suitable screws 34 for retainin it in adjusted position by engagement with suitable sockets formed in the lateral face of the creasing disk 29 in a manner similar to that shown in Figures 1 and 2. It will be seen by an inspection of Figure 3 that the male creasing member comprises 2 relatively-adjustable axially-spaced scoring Or el-easing disks which are provided with oppositely-presented beveled surfaces 29a and 33a whereby said scoring disks are adapted to cooperate with the female creasing memher in the central planes of the grooves or slots 27.

I claim 1. In a device of the character described, the combination of a female creasing roll provided with laterally-spaced groove-forming members, and a male creasing roll provided with a beveled surface inclined to the )cripheral surface of one of said grooveforming members of the female creasing roll.

2. In a device of the character described, the combination of creasing rolls provided with cooperating crease-forming peripheries, one of said rolls comprising relatively adjustable eripheral portions and the other of said rolls aving its periphery provided with oppositely-presented beveled surfaces adapted respectively to cooperate with one or the other of said relatively adjustable portions of the first-mentioned roll.

3. In a crease-forming device, the combination of a male creasing roll provided with an oppositely beveled periphery and a female creasing roll comprising coaxially arranged axially-adjustable sections forming a peripheral slot or groove of variable width and symmetrically disposed with respect to the beveled surfaces on the periphery of said male creasing roll.

4. In web-creasing mechanism, the combination of arallel shafts, a creasing-roll section keye to one of said shafts, a second creasing-roll section coaxial with the firstmentioned creasing-roll section and adjustable axially with respect thereto to provide a peripheral slot of variable width, a creasing roll mounted on the other of said shafts and having a wedge-shaped periphery centrally arranged with respect to and adapted to cooperate with the oppositely arranged adjacent corners of said relatively adjustable creasing-roll sections.

5. In web-creasing mechanism, the combination of parallel shafts rotatable in unison. a male creasing roll keyed to one of said shafts. a female creasin roll ke ed to the other of said parallel sha s, said emale roll comprising a fixed section keyed to its shaft and a section adjustable axially along the last-mentioned shaft, and a threaded connection between said creasing roll sections for providing a peripheral slot of variable width.

6. In web-creasing mechanism, the combination of a web-creasin roll rotatable on a fixed axis, said web-creasing roll comprising a roll-section provided with an axially extended hub-portion and another roll-section adjustable axially on said extended hub-portion, means interengaging between said rollsections for holding said axially-adjustable section in any position to which it may be adjusted, and a second web-creasing roll rotat 1 passer able about an axis parallel to the rotary axis of the sectional creasing roll, said second web-creasing roll being provided with a peripheral portion adapted to cooperate jointly with said roll-sections of the first-mentioned creasing roll.

7. In web-creasing mechanism, the combination of a web-creasing roll rotatable on a fixed axis, said web-creasing roll comprising a roll-section having an axially extended hub-portion provided with external screwthreads, and another roll-section threaded on said externally threaded hub-portion, means interengaging between said roll-sections for holding the second-mentioned rollsection in any position to which it may be adjusted, and a second web-creasing roll rotatable about an axis parallel to the rotary axis of the sectional creasing roll.

8. In web-creasing mechanism, the combination of a web-creasing roll rotatable on a fixed axis said web-creasing roll comprising a roll-section having an axially extended hubportion provided with external screwthreads, and another roll-section threaded on said externally threaded hub-portion, means interengaging between said roll-sections for holding the second-mentioned roll-section in any position to which it may be adjusted, and a second web-creasing roll rotatably about an axis parallel to the rotary axis of the sectional creasing roll, said interengaging holding means comprising set-screws threaded into one of said creasing-roll sections and inpinging upon the other of said creasingroll sections.

9. In web-creasing mechanism, the combination of web-creasing rolls arranged to cooperate peripherally for creasing a web, one of said web-creasing rolls comprising a rollsection provided with an axially extended hub-portion threaded externally and another roll-section threaded onto said externally threaded hub-portion, said roll sections being thus adapted to provide a peripherally-open slot of variable width between them, and the other of said web-creasing rolls being pro- *ided with a peripheral portion symmetrically formed with respect to a plane normal to the rotary axis of the sectional creasingroll, and means for interlocking said creasing-roll sections together in any of their relatively adjusted positions.

10. In web-creasing mechanism, the combination of web-creasing rolls arranged to cooperate peripherally for creasing a web, one of said web-creasing rolls comprising a rollsection provided with an axially extended hub-portion threaded externally and another roll-section threaded onto said externally threaded hub-portion, said roll-sections being thus adapted to provide a peripherally-open slot of variable width between them, and the other of said web-creasing rolls being provided with a peripheral portion symmetri-' cal-lyformed with respect to'ia-plan'e normal 11. In a device of the character described,

the combination of a female creasing member provided with-two grooves adjustable as towidth, and relatively adjustable coaxiallyarranged male creasing members adjustable to positions in which they cooperatercspectively with said grooves of the female creasing member. i s

12-. In a device of the character described, the combination of a female creasing member comprising relatively adjustable parts forming a plurality ofslots ad justable'as to width, and relatively adjustable coaxially arranged scoring members'adjustable to positions in which they are adapted to cooperate with the respectivewslots in said'female creasing member.

13. In a device of the character described, the combination of two axially-adjustable rotary male creasing members, each of said rotary male creasing members being provided with oppositely-presented beveled surfaces, and a female creasing member comprising a central portion adapted to cooperate with the adjacent beveled surfaces on both of said rotary male creasing members and two adjustable portions arranged on opposite sides of said central portion and adapted to cooperate respectively with the other beveled surfaces of said male creasing members.

14. In a device of the character described, the combination of a rotary male creasing member adjustable axially, a second rotary male creasing member adjustable on the first rotary male creasing member, and a double female creasing member comprising adjust ably-connected parts forming slots adjustable as to Width and with which said male creasing members are adapted to cooperate.

15. In a device of the character described, the combination with two parallel shafts geared together to rotate in unison, of a fe male creasing member mounted on one of said shafts, said female creasing member comprising a central creasing disk provided with oppositely-presented elongated hubs, other creasing disks adjustable along said elongated hubs on opposite sides of said central creasing disk and forming therewith axiallyspaced grooves or slots of variable Width, and male creasing members adjustable axially on the other of said shafts into and out of the respective central planes of said axiallyspnmd grooves or slots of the female creasing member.

16. In a device of the character described, the combination with two parallel shafts 5 geared together to rotate in unison, of a female creasing member adjustable axially on one of said shafts, said female creasing member comprising a central creasing disk provided with oppositely-presented elongated m hubs provided exteriorly with screw threads,

other creasing disks threaded to said elongated hubs on 0 posite sides of said central creasing disk an forming therewith axiallyspaced grooves or slots of variable width, and 15 a male creasing member comprising a creasing or scoring disk adjustable axially on the other of said shafts into and out of the central plane of one of said axially-spaced grooves or slots of the female creasing mem- 20 her, said male creasing or scoring disk being provided with an elongated hub provided exteriorly with screw-threads, and a second male creasing or scoring disk threaded to the last-mentioned elongated hub and adjustable it? into and out of the central plane of the other of said axially-spaced grooves 0r slots of the female creasing member.

GEORGE W. SWIFT, JR. 

